A longer one:

Mother to her daughter:
"And always remeber - the ideal man man to marry must be thrifty, stupid and chaste."
After a long weekend the daughter tells her mother:
"Mummy, I think I have found him!
He is thrifty: he rented only one room for us both.
He is stupid: He put the pillow under my butt.
And he is chaste: He had him still wrapped in plastic."

And here a short one, musical:
Two trombone players are passing a pub ...

Wilfried